Refrigeration apparatus.



No. 653,!73. Patented Iuly 3, |900. C. J. COLEMAN.

REFRIGERATION APPARATUS.

(Application filed Oct. 14, 1899.)

(No Model.)

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,TA `ffm NTTED STATES PATENT OFFICE.

CLYDE J. COLEMAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO THOMAS J. Y RYAN, OFNEW' YORK, N'. Y.

Re'FRieERA'TloNfAPPARATUS- SPECIFICATION forming part of lLetters PatentN o. 653,173, dated July 3, 1900.

Application filed October 14, 1899.

To aZZ whom it may concern:

Be it known that I, CLYDE J. COLEMAN, a citizen of the United States,and a resident of Chicago, in the county of Cook and State of Illinois,have invented certain new and useful Improvements in RefrigerationApparatus and I do hereby declare the following to be a full, clear, andexact description of the same,

reference 'being hadto the accompanying drawings, forming a part of thisspecification.

The` present invention relates more espe- I ciall'y to that portion ofrefrigeration systems and apparatus employed to positively trans-l ferthejrefrigerant medium from the expansion or cooling chamber to thecondensing or storage chamber. of the system. The object of the presentimprovements is toprovide a simple and efficient system of refrigerationcontinuous in its nature and affording in a closed r sealed circuit apositive moti-ve power for eecting a transfer of the refrigerant mediumfrom one part of the ap` paratus to the other, as will hereinafter morefully appear and be more particularly pointed out in the claims. Iattain such object by the construction and arrangement of Y partsillustra-ted in the accompanying drawings,rin which` Figure 1 isageneral elevation of a refrigeration system and apparatus embodying thepresent invention; Fig. 2, a detail sideelevation illustrating a seriesof three jet-pumps and connections coupled in series; Fig. 3, a

1 detail horizontal section at line a; Fig. 1;

Fig. 4, a detaill side elevation of the motivepower apparatus forimparting movement or circulation to the conductive'motive iiuid of thejetpumps or injectors of the present invention; Fig. 5, an enlargeddetail vertical section at line Fig. 6, of such motive- ',-powerapparatus; Fig. 6, a detail horizontal section ofthe same at line m2 m2,Fig. 5. I

Similar numerals of reference indicate likev parts in the several views.

The iirst part of the present invention 1'elates to anelectricallyactuated pumping apparatus for refrigerating systems and infvolves a construction and arrangement of parts in which the repellantaction of a magneticlield is employed in connection with a coluni'n ofconductive fluid-such, for., in

sean No. 733,688.' ,oto modelo In the construction shown in thedrawingsl as illustrating a form of apparatus specially adapted for usein refrigeration systems, l

represents a pair of pole-pieces arranged in` separated parallelrelation and provided with energizing windings orcoils 2 and connectingend pieces 3, as shown.

4 is a non-conducting trunk, one or more Vin number, as hereinafter morefully set forth, fitting between the pole-pieces l and constituting aflattened portion of the endless tubular loop 5of the, present inventionand which loop contains the column of mercury or like conductive iiuid.

6 represents conducting wires or terminals extending through theendwalls of the trunk 4, as shown, and adapted to conduct an elec-f triccurrent through the mercury contained in the trunk 4 in atransversedirection. The construction being such that with an electric currentpassing transversely through the column of mercury,and the pole-pieces1,'electrically energized, the column of -mercury will be forcibly'moved in a vertical direction in the trunk 4 and through the vertical'leg of the tubular loop 5, connected therewith.

While preference is givento the above-described construction of theelectromagnetic pole-pieces 1 on accountvof the superior efficiencythereof, itis, however, within the province of the presentinvention tomodify such arrangement as circumstances may require and in. someinstances to substitute one or more permanent magnets therefor.

7 is a -jet-pump or injector arranged near the upper end of thedownwardly-conducting branch of the tubular lloop 5` and provided Icowith an inlet-pipe 8 for the introduction into such pipe of the aeriformor other fluid to be translated.

9 is a receiving-tank arranged near the lower end of suchdownwardly-conducting branch of the tubular loop and adapted torey ceivethe descending mercury and the fluid carried thereby from the jetpump 7and retain the same under pressure due to the action of such pump anddescending bod y of mercury.

10 is an outlet-pipe from such tank for the compressed aeriform or otherfluid.

My preferred construction involves the coupling together in series anumber of the above-described pumping apparatus, the one receiving thecompressed fluid from the preceding pump and further compressing thesame, the next succeeding pump taking such compressed fluid andeiectinga further compression, and so on through the number of pumpsthat may be coupled together in series.

In effecting the above-described result the tank 9 of one pumpingapparatus Will be con nected to the jet-pump 7 of the next adjoiningpumping apparatus by pipe connection 1l, and so on through the number ofpumping apparatus employed.

Another part of the present invention i11- volves the employment of theabove described pumping apparatus as the motive power for transferringthe refrigerant medium from the expansion or cooling chamber 12 to thecondensing or storage chamber 13 of the system. In the constructionshown in the drawings as illustrative of this part of the presentinvention the storage or condensing coil or chamber 13 is connected withthe outlet-pipe 10 of pump tank or chamber 9 and with the eX- pansion orcooling chamber or coil 12 by a pipe connection 14, in which is arrangedthe expansion-valve 15,- by means of which the refrigerant medium isadmitted to the expansion chamber or coil 12 at a predetermined pressureor dcnsity. The expansion coil or chamber 12 is in turn connected withthe inlet of the first jet-pump 7 when a number of such pumps are usedby the pipe connection S,

5o having a check-valve 16, by which a backflow into theexpansion-chamber is prevented.

17 is a check-valve in the pipe Aconnection 10 to preventa backflow fromthe compression or storage chamber 13 into the receiving-tank 9 of thepumping apparatus.

Having thus fully described my said invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In a. refrigeration system of the class herein described thecombination with the storage-chamber, and the cooling-chamber, of aconducting column of mercury, and an electrical repulsion apparatus forvarying the height of such column, substantially as set forth.

2. `In a refrigeration system of the class herein described thecombination with the storage-chamber, and the cooling-chamber, of anendless tubular loop containinga body of mercury, a pumping apparatusconnected to such loop, and to the storage and expansion chambers,and anelectrical repulsion apparatus for imparting motion to the body ofmercury, substantially as set forth.

3. In a refrigeration system of the class herein described, thecombination with the ,storage-chamber, and the cooling-chamber,

of an endless tubular loop containinga body of mercury, a jet-pu mp orinjector connected to such loop and to the storage and expansion lchambers, and an electricalrepulsion apparatus for imparting motion tothe body of mercury, substantially as set forth.

4. In a refrigeration system of the class herein described thecombination with the storage-chamber, and the cooling-chamber, of aseries of endless tubular loops, containing a body of mercury, a seriesof jet-pumps or injectors connect-ed to such loops and to the storageand expansion chambers, and an electrical repulsion apparatus forimparting motion to such bodies of mercury, the pumps being connectedtogether in series, substantially as set forth. v

In testimony whereof witness my hand this 2d day of, September, 1899.

GLYDE J. COLEMAN. In presence of- ROBERT BURNS, CHARLES PICKLEs.

